Locking device for doors



Feb. 5, 1929. 1,701,076

' l. KEMP LOCKING DEVICE FOR DOORS Filed July 22, 1927 INVENTOR TORNEY Patented Feb. 5, 1929.

rnvme KEMP, or NEW YORK,

PATENT "OFFICE,

1v. Y., assrenoa To examine xmm or miw- YORK, 1:. Y.

LOCKING DEVICE FQR DOORS.

Application filed m a, 1927. Serial no. 207,5s7.

This invention relates to locking devices for doors.

One object of this invention is to provide a plurality of bolts arranged to secure a door,

and a single locking mechanism for locking or unlocking allof said bolts by a single operation.

A further object of this invention is to pro: vide a device of the character set forth in which there, are a plurality of bolts acting at the jamb and the floor in relation to a door, said bolts being operated by a single simplified actuating means.

Another object of this invention is to provide a novel coaction between a door securing mechanism and a locking mechanism therefor wherein several bolts for securing said door are automatically driven into coaction with mating parts, said securing mechanism embodying a novel method of operation.

A further object of this invention is to provide a jimmy-proof connection at thelocking mechanism for a door .or the like in Y which a slide bolt is utilized to transmit the motion of the locking mechanismto the securing mechanism of the door.

A still further object is to provide a door locking device of the character described which. shall be simple and practical in construction andefiicient in operation to a high degree. I

Other objects of this invention will in part beobvious and in part hereinafter pointed out. p

The invention accordingly consists in the features of construction, combinations of ele-. ments, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of ap lication will be indicated in the following o aims. Inthe accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a side view in elevation of an embodiment of the invention, parts being 1 broken away.

Fig. 2 is a front view of the device, asset up, showing the partsin unlocked position. T Fig. 3 is a front view, parts being shown in away to show details in the construction of the strikebolt. 5

Fig. 6 is a section on line 66 of Fig. 5, looking in the direction of the arrows;

Referring in detail to the drawing, the invention is there shown applied to a suitable structure having a door or other movably swingable part 10 and two relatively fixed parts such as a jamb 11 and afloor 12. Mounted on the door 10 and conveniently above the floor 12 is a lock casing 13 having therein the conventional bolt retracting and projecting mechanism by means of which a member 15 is given a reciprocatory motion. A rotatable knob 16, and conventional key operated bar. rel mecha 'sm 17 are provided for controlling the operation of said bolt mechanism. Lock casing 13 may have projectable therefrom the locking bolt 13 WlllCh may be formed integral with member 15.

To insure maximum reliability of the lock and to properly distribute the strains on the door incident to any attempt to force the same open, a plurality of bolts 18, 19 and 20 are provided to be associated, as hereinafter described with different parts of the door construction, these boltsbeing all actuated directly by member 15. Each of said bolts has a novel action of its own, but all ofsaid ,bolts are actuated simultaneously by the single member 15. Member 15 may be constructed, as shown, of one piece extending out of the casing 13 to present a bar 15" which is slidablv mounted in brackets 21 and carries thereon the several bolts 18, 19 and 20. Thus. by moving bar 15" downwardly under control of the bolt mechanism. bolts 18, 19 and 20 will be thrown into locking position, while, upon upward movement of said bar, the bolts will be retracted. The upward movement of the several parts is aided by springs 22, acting between brackets 21, and pins 23 on said bar. Due to this spring arrangement, said bar may beconstructed to have an upper free end, held by said springs in abutting relation with the end of the bolt of aconventional lock which bolt, on being projected from or retracted into casing 13, may cause or allow the necessary movement of bar 15. -In either of these arrangements, the lock casing 13 may be provided with an extending cover guard 13 so ositioned with respect to the connectionof ar 15" and member 15; that, atan position of said parts, the point of connection is in the construction in which the bar 15 and member 15 are separate parts, normally in contact, the cover 13 will prevent an attem ted separation of the connecting ends by te use of a jimmy or the like.

The bolt 19 may be formed as an integral part of the harlo and is here shown as constituting one end portion of said bar, this portion being receivable in a socket or en-' in a manner similar to that used for socket 24. The pivot 26 of bolt 20 and bar 15 is constituted in the clevis 27 formed on bolt 20 which receives a reduced shank portion 28 on bar 15 The spring clip 30 is fixed to door 10 and positioned with relation to bar 15 and strut bolt 20 so that, if the bolt 20 be moved upwardly and into the clip, it will be retained therein. Thus, when the door is unlocked and pivoting on its hinges, or if it is desirous to dispense with the use of bolt 20 when the others are in action, this bolt may be swung into engagement with the clip to the position shown by the dotted lines in Fig. 1. A. bend 29 in the bolt permits the same to be retained by said clip in vertical position.

The bolt 18 is pivotally carried by bar 15 as by means of a pin 31, and said bolt normally contacts with an upperedge portion of clip 30, so that, when the bar 15 is moved downward, the bolt 18 will pivot upwardly and laterally into engagement with a strike 32 on the jamb 11. The movement of pivotal bolt 18 is in a plane parallel to the door,

said bolt, in locked position, occupying a position at the upper end of the strike, while considerable space is permitted to enable the bolt 18 to clear the strike 32 when in the lower or unlocked position. To insure positive movement of the bolt 18 into the retracted position, shown on Fig. 2, when the bar 15 is being moved upward, a spring 33 may be provided, mounted on said bar, and pressing against said bolt to normally maintain it in the lowered position.

The operation of the lock will now be apparent. In order to close the lock, the strut bolt 20 is disengaged from clip 20 and allowed to drop into contact with floor 12. When the door 10 is now moved to closed position, the end of bolt 20 will be brought into position for entry into the socket 25. The knob 16 or key barrel 17, as the case may be, may now be rotated to move the bar "15 downwardly, thus with such slight turning movement causing bolt 19 to enter its socket 24,

the pivotal bolt 18 to swing into its strike 32, and strut bolt 20 to enter abutment member 25.

This lock accordingly provides bolts so spaced as to permit of a proper distribution of the strains to which a door and its surrounding structure may be subjected when an attempt is made to force the door open. F urthermore, since said bolts engage both the jamb and the floor, the lock is jimmy-proof.

It'will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent a 1. A device for fixing a door against movement relative to a floor, comprising a bolt associated with said door, a socket on said floor, means to actuate said bolt into engagement with said socket, said bolt being pivotally mounted on said actuating means and movable upwardly away from said socket when not engaged with said socket, and means to detachably retain said bolt in said upward position.

2. A look for a door mounted relative to a floor and amb comprising a strike on said jamb, a socket on said floor, a bolt associated with said door for coaction with said strike, a strut bolt associated with said door for coaction with said socket, and single actuating means for operating said bolts.

3. A look for fastening a movable member relative to two relatively fixed members comprising a strikeon one of said fixed members,

a socket on another of said fixed members, a bar longitudinally slidable on the movable member, a strut bolt mounted on said bar, a second bolt movably mounted on said bar, a pivot for said second bolt, and means to move said bar to cause the strut bolt to engage said socket and the second bolt to move parallel to the door to engage said strike.

4. A look for fastening a movable member relative to two relatively fixed members comprising a strike on one of said fixed members, a bar longitudinally slidably mounted on said movable member for movement parallel to said member, a bolt mounted on said bar, a pivot for said bolt, means to move said bar, and means operable upon movement of said bar to force said bolt about said pivot Whereby said bolt is moved to engage said strike.

floor and jamb comprising a strike associated with the door jamb, an engagement member on said floor, a plurality of spaced bolts for engaging said strike and said engagement member and a single bar for directly actuating said bolts.

6. A lock of the character described, comprising a plurality of bolts, one of said bolts being a strut bolt, a vertical bar movable downwardly to project said bolts, resilient means tending to raise the bar to retract said bolts, and means to move the bar downward against the force of sai resilient means.

7. A lock for fixing the relative position of three members, one of which is movable relatively to' the others, comprising three bolts, one of said bolts being a strut bolt carried upon one of said members and adapted for engagement with said other members, and

' means for simultaneously moving said bolts into and out of locking position.

8. A lock of the character described, com prising a plurality of engagement members in a floor and a jamb adjacent to a door, bolts on said door to coact with said engagement members, an abutment member in the floor spaced from said door, and a strut bolt on the door tocoact with said abutment member.

9. Alock of the character set forth, comprising a bar on a door parallel to the striking edge thereof, a bolt on the lower end of said bar, an engagement member for said bolt in a floor, a strike on a jamb, a bolt on the door actuated'by said bar to engage the strike, an abutment member on said floor, a strut bolt-on the door actuated by said bar to coact with said abutment member, and means to move saidbar longitudinally to project or retract said bolts. r

10.v A lock for fixing the relative position of three members, one of which is movable said movable member against movement with V respect to one of the other members and being projectable in the same direction simultaneously with the actuation of the third bolt. 12. A lock for fixing the relativeposition of three members, one of which is movable relative to the others, comprising three bolts carried upon said movable member, one of said bolts providing a strut to resist'movement of said movable member in one direction being simultaneously projectable with one of theother bolts.

13. A device for fixin movement relative to a oor comprising a strut bolt associated with the door and engageable with the floor, spring means for urging said bolt to retracted position, and means for projecting said bolt into engagement with the floor. r

14. A device for fixing a door against movement relative to a floor comprisinga a door against plurality of bolts associated with the door 7 and engageable with the floor, one of said bolts being a strut bolt, means for urging said bolts to retracted position, and means for projecting said bolts into engagement with the floor.

In testimony whereof I afiix m signature.

IRVIN -KEMP. 

